1.
Composition of by-catch in shrimp beam trawls in waters surrounding Naozhou Island in Guangdong province
广东硇洲岛周围水域虾拖网副渔获组成分析
2.
A TENTATIVE STUDY ON THE TRY NET USED FOR DOUBLE - RIG SHRIMP TRAWLING IN SIERRA LEONE COASTAL WATERS
塞拉里昂海域双支架虾拖网作业中试验小网设计的研究
3.
INJURY DONE TO JUVENILE FISH BY THE METHOD TO ENHANCE PENAEUS CHINENSIS THROUGH RECAPTURE WITH BOTTOM TRAWL
底拖网回捕增殖对虾对经济幼鱼的损害
4.
The Separating Effects of Rigid Sorting Grid on Catches in Otter Shrimp Trawling Fishery
刚性分离栅对网板虾拖作业渔获物的分离效果
5.
It is avery serious problem for the fish stock, so that, a new two-boat long square prawn trawlwas designed in 1974--1977, in order to increase catching efficiency and to reduce thedamage on young fishes.
因此,在1974—1977年研究一种能够多捕对虾、大量释放幼鱼的新型双拖网。
6.
One that drags, especially a vessel using nets dragged along the bottom to catch fish.
拖网拖东西的人或物，尤指拖网捕鱼船
7.
THE MECHANICAL CALCULATION OF THE MATCH OF TRAWL BOARD, TRAWL AND TRAWLER
网板、拖网、拖网船配合的力学计算
8.
A vessel used for trawling.
拖网渔船一种用于拖网捕鱼的船只
9.
They are dragging up the fishing net
他们在往上拖渔网。
10.
seine gang
用拖拉大围网的捕鱼队
11.
They are trawling for cod.
他们正在用拖网捕鳕。
12.
The minimum mesh size of the trawl cod-end in South China Sea
GB11780-1989南海区拖网网囊最小网目尺寸
13.
Discussion about optimum mesh size of cod end for Chilean jack mackerel trawl
智利竹?鱼拖网最适网囊网目尺寸探讨
14.
The Selectivity about Separating Device for Fishes and Shrimps of TanZi Net in ShanDong;
山东沿海坛子网鱼虾分离装置的选择性研究
15.
The resistance of rope trawls (mesh sizes are 6、8、10.8m respectively) is compared with that of macromesh trawl and small mesh trawe respectively.
本文对目大6m、8m、10．8m的绳拖网分别与疏目拖网、小目拖网的阻力进行了对比分析。
16.
Hammer dredge is a technical improvement of the existing dredge sampler.
重锤式拖网取样器是对现行常规拖网的技术改进。
17.
EXPERIMENTAL STUDY ON SHIP MOTIONS WHILE TOWING A TRAWL NET
关于拖网作业中的拖网渔船的船体运动的实验研究
18.
The minimum mesh size of the trawl cod-end in the East China Sea and Yellow Sea
GB11779-1989东海、黄海区拖网网囊最小网目尺寸